Unrecognized function or variable 'i1'.

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Dan Giffin 2023-10-15

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评论： Dan Giffin 2023-10-15

采纳的回答： the cyclist

So this doesn't work if either of the t = 0:0.2:2 OR t = linspace(0,2,100); are commented or not.

How do I get it to work since the turorial sheet says that this exact code should work if I run:

[a,b,c] = ThreeFunc2(i1,i2,i3)

But it doesnt.

It gives the error:

Unrecognized function or variable 'i1'.

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the cyclist 2023-10-15

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The variables i1, i2, and i3 in the function call

[a,b,c] = ThreeFunc2(i1,i2,i3)

or the variables t, f1 and f2 in the function call

[a,b,c] = ThreeFunc2(t,f1,f2)

need to be defined before the function call, not just exist within the function. Those variables are expected as inputs.

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the cyclist 2023-10-15

Your assignment explicitly states, "the time vector you specified in parameter i1", in other words you need to tell your function what i1 is.

The assignment is admittedly less clear on what to do with i2 and i3 (although it does say you can use a number for i3).

Dan Giffin 2023-10-15

Riiight, that makes a lot of sense.

Thanks for your time,

sorry for being slow.

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Sam Chak 2023-10-15

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Hi @Dan Giffin

I think you can do something like this:

t = 0:0.01:10;

f1 = 1/10;

f2 = 1/5;

% Call the function

ThreeFunc2(t, f1, f2)

% Write the tasks to be carried function

function ThreeFunc2(t, f1, f2)

y1 = sin(2*f1*pi*t);

y2 = cos(2*f2*pi*t);

plot(t, [y1' y2']), grid on

end